Ryzen 2700X memory OC on X470 Taichi?

[Shmee]

So I recently noticed that there are 2 newer BIOS updates for my board, (currently on 2.00) and I will probably update soon to the latest and redo my BIOS settings, as I typically do when updating a motherboard's BIOS. Typically I will also start any OC on a system from scratch, after updating the bios. Since I don't OC the 2700X and just let it XFR itself, I was thinking of trying for higher memory speeds instead, and not just using the stock XMP.

So, I guess my question is, what settings/timing should I start with? I currently have 2x8GB Gskill Trident Z @ the 3200MHz C14 XMP. I forget the part number, but I know it is bdie and the Dimms are white colored. I hear they can be overclocked a bit more. I figure try for 3466MHz, but what timings? Also, what should I start VDDCR SOC and Vmem @? I assume stay at 1.35v for memory? (Though I know DDR4 is fine to run a bit higher if needed.)

I intend to use passmark memtest86 v8.1 for testing. Thanks.

 

[DrMrLordX]

First, I would be careful with UEFI updates. You want the latest UEFI that supports Pinnacle Ridge and only Pinnacle Ridge. Anything with early Zen2/Matisse support may not be optimal for your CPU. I had to update to Pinnacle Ridge UEFI versions on my X370 Taichi and experienced some RAM problems on my 1800x. Now I've basically lost DDR4-3466 and I'll never get it back on this board - at least not on any UEFI version with Spectre mitigations. Grr.

Anyway once you have that figured out, you can try using the Ryzen DRAM calculator, or you can fly by the seat of your pants the way I did. If you want to go the calculator route:

https://www.overclock.net/forum/13-...lator-ryzena-1-4-1-overclocking-dram-am4.html

if not, be prepared for some trial-and-error! Even the calculator can be a bit time-consuming to use. I got better results on my own, fwiw.

 

[Shmee]

Thanks, I followed the guide for the most part and was able to get stable so far at 3400MHz, with similar timings. Memtest 4 passes 0 errors. At 3466 though I got an error the first pass.

 

[DrMrLordX]

Great! You picked up 200 MHz clockspeed without making major sacrifices on timings. Job well done overall. With better DIMMs you might have hit higher speeds. I don't think Pinnacle Ridge hits higher than DDR4-3600 very often, and even then it's pretty heavily-dependent on board UEFI/microcode.

 

[Jism]

Load up XMP and start from there. I usually go for straight faster speeds, and memory timings as a last step. Use memtest86 on a bootable USB/DVD or whatever and have it run a few tests. For full stability let it pass a night.

 

[Soulkeeper]

memory settings can be one of the most time consuming things to test.
You can easily spend hours/days testing various combinations trying to max out your mem for that last 1% ...
I'm not complaining, but when I do find fast stable settings I take a picture of my bios with my camera for future reference.

 

[Jism]

Eh? You could save the profile if you have a advanced board. I.e a preset you can give it a name like "WORKING" so whenever you put in a CMOS reset you reload the profile and voila, everything back to what it was.

 

[DrMrLordX]

Eh? You could save the profile if you have a advanced board. I.e a preset you can give it a name like "WORKING" so whenever you put in a CMOS reset you reload the profile and voila, everything back to what it was.

Those settings are wiped clean whenever you update UEFI. And since it's an AM4 board, anything that was stable under one UEFI revision/AGESA version may not work after an update. I learned that the hard way.

 

[Markfw]

I guess I was lucky. Got the best memory, it was working fine at 3466 or 3600, so I never updated the bios, left them alone.

 

[Jism]

There's really no need to update the bios, if it does'nt offer fixes for your specific platform alone. It wont magically OC better either. Some fixes are really minor fixes and not the trouble to go through. Really, if it aint broke, dont fix it.

 

[DrMrLordX]

There's really no need to update the bios, if it does'nt offer fixes for your specific platform alone. It wont magically OC better either. Some fixes are really minor fixes and not the trouble to go through. Really, if it aint broke, dont fix it.

I had to update my x370 Taichi multiple times (1800x). Early UEFI revs had poor memory overclocking. Around 3.30 it was ideal, and then I had to do more updates for Spectre mitigations. Sadly, those updates had AGESA updates for Pinnacle Ridge which killed my memory OC.

 

[Shmee]

Ya I decided to stay on 2.00 for now. Still at 3400Mhz stable currently.

 

[Shamrock]

Me too. I'm not touching 3.20. It updates AGESA to 0.0.7.2

2.0 has update to AGESA 1.0.0.6